The latest version of Minecraft is 1.7.2. Printcraft's servers are still on 1.6.4, this is because we are waiting for the Craftbukkit plugin framework to also be updated. We use Craftbukkit to run our custom 3D printing plugins. Minecraft 1.7 includes many significant changes and improvemnents to the game and it takes a while for the Craftbukkit plugin framework to be rewritten to take account of these changes. We just have to be patient. In the meanwhile it is easy to choose Minecraft 1.6.4 by creating a new profile in your Minecraft launcher, you will then be able to connect as normal.
Printcraft is proud to have been awarded funding from the Digital Makers Fund sponsored by Nesta, The Nominet Trust and Mozilla. Digital Makers is a programme to encourage and enable a generation of young people to create rather than simply consume technology.
Printcraft is a project created by glowinthedark, you can reach us in various ways.